Drag-and-drop: DragEnter, DragOver, DragLeave, DragDrop

content/browser/web_contents/web_contents_view_aura.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/web_contents/web_contents_view_aura.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include "base/auto_reset.h"
@@ skipping 1112 matching lines @@
       !web_contents_->GetDelegate()->CanDragEnter(
           web_contents_, *current_drop_data_.get(), op)) {
     current_drop_data_.reset(NULL);
     return;
   }
 
   if (drag_dest_delegate_)
     drag_dest_delegate_->DragInitialize(web_contents_);
 
   gfx::Point screen_pt = display::Screen::GetScreen()->GetCursorScreenPoint();
-  web_contents_->GetRenderViewHost()->DragTargetDragEnter(
+  web_contents_->GetRenderViewHost()->GetWidget()->DragTargetDragEnter(
       *current_drop_data_, event.location(), screen_pt, op,
       ConvertAuraEventFlagsToWebInputEventModifiers(event.flags()));
 
   if (drag_dest_delegate_) {
     drag_dest_delegate_->OnReceiveDragData(event.data());
     drag_dest_delegate_->OnDragEnter();
   }
 }
 
 int WebContentsViewAura::OnDragUpdated(const ui::DropTargetEvent& event) {
   DCHECK(current_rvh_for_drag_);
   if (current_rvh_for_drag_ != web_contents_->GetRenderViewHost())
     OnDragEntered(event);
 
   if (!current_drop_data_)
     return ui::DragDropTypes::DRAG_NONE;
 
   blink::WebDragOperationsMask op = ConvertToWeb(event.source_operations());
   gfx::Point screen_pt = event.root_location();
-  web_contents_->GetRenderViewHost()->DragTargetDragOver(
+  web_contents_->GetRenderViewHost()->GetWidget()->DragTargetDragOver(

[dcheng, 2016/11/09 20:23:17]

Ditto: worth annotating this with a TODO?

[paulmeyer, 2016/11/09 23:19:11]

Done.

       event.location(), screen_pt, op,
       ConvertAuraEventFlagsToWebInputEventModifiers(event.flags()));
 
   if (drag_dest_delegate_)
     drag_dest_delegate_->OnDragOver();
 
   return ConvertFromWeb(current_drag_op_);
 }
 
 void WebContentsViewAura::OnDragExited() {
   DCHECK(current_rvh_for_drag_);
   if (current_rvh_for_drag_ != web_contents_->GetRenderViewHost())
     return;
 
   if (!current_drop_data_)
     return;
 
-  web_contents_->GetRenderViewHost()->DragTargetDragLeave();
+  web_contents_->GetRenderViewHost()->GetWidget()->DragTargetDragLeave();
   if (drag_dest_delegate_)
     drag_dest_delegate_->OnDragLeave();
 
   current_drop_data_.reset();
 }
 
 int WebContentsViewAura::OnPerformDrop(const ui::DropTargetEvent& event) {
   DCHECK(current_rvh_for_drag_);
   if (current_rvh_for_drag_ != web_contents_->GetRenderViewHost())
     OnDragEntered(event);
 
   if (!current_drop_data_)
     return ui::DragDropTypes::DRAG_NONE;
 
-  web_contents_->GetRenderViewHost()->DragTargetDrop(
+  web_contents_->GetRenderViewHost()->GetWidget()->DragTargetDrop(
       *current_drop_data_, event.location(),
       display::Screen::GetScreen()->GetCursorScreenPoint(),
       ConvertAuraEventFlagsToWebInputEventModifiers(event.flags()));
   if (drag_dest_delegate_)
     drag_dest_delegate_->OnDrop();
   current_drop_data_.reset();
   return ConvertFromWeb(current_drag_op_);
 }
 
 void WebContentsViewAura::OnWindowVisibilityChanged(aura::Window* window,
@@ skipping 16 matching lines @@
                                         bool allow_multiple_selection) {
   NOTIMPLEMENTED() << " show " << items.size() << " menu items";
 }
 
 void WebContentsViewAura::HidePopupMenu() {
   NOTIMPLEMENTED();
 }
 #endif
 
 }  // namespace content